Published on : 2017-05-28 12:08:11

This check is essential for programs that use file handling. Here, the check step suggests an alternative (e. addValidation(Field Name, Validation Descriptor, Error String); See below for the complete list of validation descriptors. This is most suitable for non-interactive system, for systems where the change is not business critical, for cleansing steps of existing data and for verification steps of an entry process. You can add any number of validations to a field. An e-mail address might require at least one @ sign and various other structural details. js in your html file just before closing the HEAD tag